riff: don't try to parse too small WAVEFORMAT headerslav0.57

1 files changed, 6 insertions, 0 deletions

diff --git a/libavformat/riff.c b/libavformat/riff.c
index 7ad96a8a76..e5b12c3353 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -781,6 +781,12 @@ int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
 {
     int id;
 
+    /* avoid reading headers which are way too small */
+    if (size < 14) {
+        avio_skip(pb, size);
+        return 0;
+    }
+
     id                 = avio_rl16(pb);
     codec->codec_type  = AVMEDIA_TYPE_AUDIO;
     codec->channels    = avio_rl16(pb);